Poor Na'Vi...

They won the 1st International and got close to it several times later, but as time goes by it just got harder and harder for them to perform.

I don't think they start to play bad, the opposition simply started to get their shit together and raised up to the challenge.

Today most Tier 1 teams are some crazy dota machine maximized to farm, gank AND push all at the same time.If you are not on that level you just lose to the "macro" game as enemy heroes get levels and items while you run around the map trying to catch up.

A Tier 1 team is a rare mix of good strategists, charismatic captains, skilled playmakers and all those little flowers not killing each other when shit hits the fan.

I don't think Na'Vi has all the pieces right now.